However, things differ greatly for Tasmania's 29 different municipalities.

The report, Insight Nine - Regional population trends in Tasmania: Issues and opinions, was put together by demographer Lisa Denny and researched Nyree Pisanu.

It provides a breakdown of the demographic profiles of each region, looking at the causes of population change at a community level and future implications it may have.

Dr Denny said Australian Bureau of Statistics and Tasmanian Department of Treasury and Finance figures suggested the Tasmanian population would begin to decline by mid-century.

However, population growth is expected in parts of the states south and in Northern Tasmanian regions such as West Tamar, Launceston, and the Northern Midlands.

"The situation differs substantially between Tasmania's regions and its [local government areas]," Dr Denny said.

"This is due to the rate of population ageing in the state. The fact is, population ageing heralds the end of population growth and the start of depopulation.

"And, depopulation occurs first at a [local government area] level before becoming a statewide issue. This is not a unique situation to Tasmania."

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The report outlines four policy recommendations which could create a regional population strategy.

Dr Denny said the causes of depopulation were complex, and there was not best practice response.

Her first recommendation was the establishment of a formal advisory or working group to research and give policy advice on population change.

Another was the development of a collaborative framework between tiers of government to address challenges and opportunities with population change.

"The report also recommends the development of an appropriate planning framework and settlement plan, to account for population change and movement at a sub-state level to inform planning of local settlements, services and infrastructure," Dr Denny said.

"It further recommends committing to collecting, analysing and sharing data and undertaking scenario modelling to inform effective decision making, including policy development, infrastructure investment and service provision, particularly at a community level.

"Regardless, the most appropriate response to population ageing will need to be a collaborative one, depending on local context, governance frameworks and the community and political will to respond."

The full report is available online at utas.edu.au.